if((typeof mrObjs) == 'undefined') 
    var mrObjs = {};
    
//drop list object
function MRDropList(list){
    var _this = this;
    var values = [];
    if(list){
        
    }
    
    this.addValue(value, index){
        
    }
    
    this.removeValue(value){
        
    }
    
    this.removeAll(){
        values = [];
    }
};

function makeDropLists(){
    $('.mrDropList').each(function(){
        var a = new MRDropList(this);
        if($(this).attr('id')){
            mrObjs[$(this).attr('id')] = a;
        }
    });
};

$(makeDropLists());